Dual counterbalance,
with regenerative function
RE 18307-92
VBSO-DE-CR-33
05.44.13 - X - Y - Z
Edition: 03.2016
Replaces: 11.2015
Technical data
Operating pressure
up to 210 bar (3000 psi)
Max. flow
100 l/min. (26 gpm)
Weight
2.6 kg (5.7 lbs)
Manifold material
Anodized aluminium
Note: aluminium bodies are often strong enough for operating
pressures exceeding 210 bar (3000 psi), depending from the
fatigue life expected in the specific application. If in doubt, consult
our Service Network.
Description
It provides static and dynamic control of load by regulating
the flow IN and OUT of the cylinder, through ports C2 and
C1. This valve module includes a pilot assisted
counterbalance (2) on the line C2-V2 for control of the full
bore side of the cylinder, a check valve between V1 and C1
which allows flow into the annular side and locks in reverse
direction, a pilot assisted by-pass counterbalance “fully
vented type” (1) which feeds into the full bore (C2) the
flow coming out from the annular side (C1) in order to
increase the extension speed. The valve (1) is internally
vented into V1 which acts as “Tank” line during cylinder
extension. The pilot line for the valve (1) has a one way
Fluid
Mineral oil (HL, HLP) according
DIN 51524
Fluid temperature range
-30 °C to 100 (-22 to 212 °F)
Viscosity range
10 to 500 mm2/s (cSt)
Recommended degree of fluid
contamination
Class 19/17/14 according to
ISO 4406
Other technical data
see data sheet 18350-50
Relief setting: at least 1.3 times the highest expected load.
Note: for applications outside these parameters, please consult us.
adjustable cross-over drain for hydraulic damping.
Pressure Δp
Characteristic curve
Flow Q
RE 18307-92/03.2016, Bosch Rexroth Oil Control S.p.A.
Dimensions [mm (inches)]
VBSO-DE-CR-33 | Dual counterbalance
2
Ordering code
05.44.13
X
Y
Z
Dual counterbalance,
with regenerative function
SPRINGS
Adj. pressure
range
bar (psi)
Pres. increase
bar/turn
(psi/turn)
Std. setting
Q=5 (l/min)
bar (psi)
Valve 1
150-350
(2175-5000)
110
(1595)
350
(5000)
Valve 2
150-350
(2175-5000)
110
(1595)
350
(5000)
Pilot ratio
03
4:1
35
Port sizes
V1 - V2
C1 - C2
M
03
G 1/2
G 1/2
G 1/4
Tamper resistant cap
ordering code 11.04.30.001
Mat. no.
R930005194
Preferred types
Type
Material number
05441303033500F
R930007159
Type
Material number
Dimensions
*
* The adjusting screw can be completely unscrewed. Do not exceed the indicated protrusion range of the
adjusted screw.
Bosch Rexroth Oil Control S.p.A.
Via Leonardo da Vinci 5
P.O. Box no. 5
41015 Nonantola – Modena, Italy
Tel.+39 059 887 611
Fax +39 059 547 848
[email protected]
www.boschrexroth.com/compacthydraulics
Bosch Rexroth Oil Control S.p.A., RE 18307-92/03.2016
© This document, as well as the data, specifications and other information set
forth in it, are the exclusive property of Bosch Rexroth Oil Control S.p.a.. It
may not be reproduced or given to third parties without its consent. The data
specified above only serve to describe the product. No statements concerning
a certain condition or suitability for a certain application can be derived from
our information. The information given does not release the user from the
obligation of own judgment and verification. It must be remembered that our
products are subject to a natural process of wear and aging. Subject to change.